Burglar-alarm system.



S. B. HESS.

BURGLAR ALARM SYSTEM.

APPLICATIOR FILED JUNE 3.1915.

WITNESS Patented Sept. 17, 1918,

2 SHEETS-SHEET 1.

IN VLN Tim.

A TTORNE Y s'nvron B. HESS, or NEW YORK, N. Y.

BURGLAn-ALARM SYSTEM.

Specification of Letters Patent.

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Patented Sept. 17, 1918.

Application filed June 3,1915. Serial No. 31,831.

To all whom it may concern:

, Be it known that I, SIMON B. Hnss, a citizen of the United States,residin in New York city, in the county of New ork and State of NewYork, have invented certain new and useful Improvements in Burglar-Alarm Systems, of which the following is a specification.

This invention relates to burglar alarm systems of the class employedfor the protection of localized risks, such forexample, as bank vaults,stores, lofts, buildings or apartments in residential districts.

Various systems of this class are at pres-' ent in use, in most of whichmeans are provided whereby an alarm will be started in operation uponinterferencewith the protected structure. The alarm itself is as a ruleplaced within ahousing included in the protective circuit and arrangedso as to start the signal in operation upon interference therewith.

Similarly the instruments controlling the protective circuit as well asthe alarm circuit in systems of this class are of necessity inclosedwithin the protected structure.

It is an object of my invention to provide a system simple inconstruction and economical of installation that will provide novelmeans to avoid the possibility of defeating the system circuitcontrolling apparatus, for example, by an unauthorized person who may becon cealed Within theprotected structure and may at an opportune timeseek to disconnectthe system.

It is another object of my invention to provide a system that cannot bedefeated by the'men that installed it.

It is still another object of my invention to provide a system any ofthe circuit controlling devices or the I alarm housing are tamperedwithwhile the system is normally set for operation, certaln importantcircuit wires will be ruptured and thereby entirely eliminate thepossibility of anyperson, authorized or unauthorized, from restoring thesystem to nor mal, or silencing the signal.

It is still another object of my invention to provide systems whereinthe alarm signal will operate continuously until the source of energywith the circuit controlling apparatus by anyperson while said apparatusis in its normally set status.

" of the main 'Fig. 7 the jack detached.

by tampering with theso arranged, that when is exhausted, uponinterference .In this event the alarm v by any one, even grammatic viewshowing the complete'sys tem.

Fig. 2 is a housing alarm and two of the frame portions of the auxiliaryhousing for the alarm, in open position with the board broken away toshow more clearly lay, one of the frame portions being connected to themain housing by a tubular member.

Fig. 3 is a perspective view of one of the frame portions shown in Fig.2 but looking at the other side of the same.

Fig. 4 is a. a perspective view of a third frame portion which together.with the two frame portions illustrated in Fig. '2 form.

the complete auxiliary housing.

. Fig. 5 is a view of a jack and plug for connecting two portions of aconductor in the tubular member between the main housing and theauxiliary housing of the alarm; Fig. 6 illustrating the plug detached;and

Fig. 8 illustrates a plug and jack for connecting two circuits,

the plug and jack being shown in closed or circuit making position.

Fig. 9 is a fragmental View of the plug detached.

Fig. 10 is a diagram illustrating a-sysperspective view showing partwhich contains the the connections to 'theretem in which the plug andjack shownin Fig. 8 has special application.

In the diagram illustrated in Fig. 1, the I heavily indicated wires 11and 12 and their continuations constitute the protective circuit and areconnected to any suitable source of power such as the generator 13,these 'wires 11 and 12 being connected to the guarded structureunderstood to be located at A, and passing through the main protectivehousing and the auxiliary housing of the system.

The main protective signal housing comprises substantially a protectedbox B in which a signal receiving device or audible alarm is located,and a protected box C in which the controlling mechanism of the Iaudible alarm is located. I

The protected'box C is connected by a tubular member D with; the frameportion E .of an auxiliary housing, the auxiliary housing comprisingessentially'three frame por-" structure and the box 'tionsw the frameportion E aforementioned and the frame portions F and G, illustrated inFigs. 2 3 and l, respectively.

The box B usually embraces a base mem" ber 14:, on which the audiblealarm such as the gong 15 is located. For inclosing the gong there isprovided an inner casing 16 adapted to be secured to one side oi saidbase member preferably leaving a border 17 of said base member 141 freearound said inner casing 16. To inclosc such casing 16 and secured tosaid base member, there is provided an outer casing 18 so that beforethe inner casing 16 in whichthe gong is located can be opened ordestroyed, the outer casing 1.8 must first be opened.

The box C is constructed somewhat similar to the box B it embracing acasing it) closed on. top, bottom and three sides, and having an innerdoor or closing member 20 disposed between the top, bottom and two sidessomewhat removed from the outer edges of such top, bottom and two sides,and an outer top or closing member 21 disposed similarly and concealingand protecting the inner door or closure member 20 so that be fore suchinner door can be opened. the outer door 21 must have been opened, thealarm controlling mechanism being disposed in said casing inside saidinner door menr her 20.

The frame portions E, l and G when in closed position are secured to oneanother "face to face with the frame portion F between the frameportions and G, the arrangement of supportingthe several frame ortionsbeing such that the frame portions G or F will be the first to beremoved the frame portion E preferably being secured against the wall ofa structure.

In practice I find it desirable to place the box B on the outside wallof a protected C directly in the rear of box 13 on the inside ofsaidwall within the protected. structure and provide a section of theusual electric conduit (not shown) to connect the two boxes--saidconduit providing a pathway for the circuit wires of the system betweenthe circuit controlling mechanism in box C and the box B, so that allconductors are effectively concealed and pros tected from mechanicalinjuryand surreptitious tamperin The wiring is as follows:

The main wire 11 beginning at the generator 13, after passing throughthe guarded structure A passes the opening then out through the opening23 in the box (I and thereupon through the opening 2 1 in the border 17of the base member. 14s to the ack arm 25 which is spaced apart from thejack arm 26 to receive a plug and disposed on one side of the casing 16,the W111? 11' connecting the jack arm 26 .with the jack arm 27 on theother side into the'box. C through ot' the casing 16 which jack arm 27is spaced from the jack arm 28 to receive a second plug. the jack armbeing connected by a wire 11 which passes out through the opening 29 inthe border 17 of the base member 14E disposed on the same side of thecasing 16 as the jack arms 27 and 28 are disposed, thereupon into thebox C through the opening 30 and then out again through theopen iug 31which is in communication with the conduit or tubular member Dillustrated in Fig. 2. and thereafter through several contactshereinafter to be described to the relay It.

The main wire 12 also beginning with the generator 13 after passing.through the guarded structure A passes 'into the box C through theopening thereupon through an opening 33 in the door member 20 to thejack arm 32 which is spaced from a jack arm 33 to receive. a plug, thewire 12 connected to. the jack arm passing through an opening 3-4 in thedoor member 20 into the box C and thereupon out through theopening 23and pa 'allel with the wire 11 through the opening 24 to the jack arm 25adjacent to the jack am 25, the .jack arm 25' being spaced apart fromthe jack arm 26 disposed adjacent to the jack arm 26, the wire 12 e.tending parallel to the wire 11 and connecting the jack arm 26 with thejack arm .27 disposed adjacent to the jack arm 27 which jack arm 27 isspaced apart from the jack arm28 disposed adjacent to the jack arm 28.Connected to the jack arm 28, there is provided a wire 12 which extendsparallel to the wire 11 and connects with the relay R- after passingthrough several contacts similar to the wire 11. The aft-nementionedwires 11 and 12 with their continuations when properly connected form acircuit whereby the relay R- is energized by the generator 18.

The casing 18 is in the nature of a cover -for the casing 16 and issecured to the base member 14 by any suitable means but preterablypermitting ready removal. ()n the inside of the casing 18,' there areprovided two conductive plugs 35 and lli properly insulated from thecasing 18 and each baring an insulated portion 37 in its body portion toform two contacts. The plugs 35 and 36 are disposed to cooperate withthe jack arms on the base member 14-. the arrangement being such thatwhen the casing 18 is in. closed position, the plugs will engage thetour arms of the jacks so that'the wire 11 will permitthe passage ofcurrent from the wire 11 to the wire 1 and the wire 12 will permit thepassage of current from the wire 12. In l igs'. 8 and ll, an enlargedview of the plug 35 and the jack arms coiiperab ing therewith is shown.In the plug 35 there are provided two pairs of recesses 49 and 50, therecesses 49 being disposed on -of jack arms may engage.

ACZOD 31832 11 t nt one side of the insulated portion 37 and therecesses 50 on the other side of such insulated portion, the recesses ofeach pair being disposed on opposite sides of the plug so as to form ananchor into which a pair The; plug 36 and its cooperating jack arms areidentical with the plug and jack arms just described and therefore thedescription is not Somewhat similar to this arrangement is thecooperation of the plug 38 with the jack arms 32 and the to the doormember 21 and insulated therefrom, the door member 21 in the presentinstance being shown as hingedly connected at its lower end to the floormember 39 of the box C, and adapted to be locked at its upper end to thetop piece 40. The location of the plug 38 on the door member 21 is suchthat when the door is closed, the plug will bridge the jack arms 32 and33 so that the current may pass from the Wire .12 to the wire 12*. Fromthe arrangement 7 be seen that when it is he gong or controllin membermust first be of these plugs, it will attempted to get at t mechanism,the outer removed which will immediately break the 51. -In t "110111 17cutting cit the current to the relay it and the main cover member wlllstill be locked.

' continuous wire, are

I passes through the frame F frame portion E The frame portions E, F andG contain mechanism for setting-thealarm, the frame portion F supportingthe relay R. The wires 11 and 12,

' provided with several contacts whereby the Wires may be interruptedwhen the frame portions are opened and by a Wire 1'1 which Fig. 3) andterminates in the contact 43. The contact 44 on the frame portion Gwhich is'adapted to contact with the contact 43 is-connected by the wire11 which is secured in a zigzag position to the frame portion G andterminates at its other end in the contact 45 which contact is adaptedto contact with the contact 46 on the same side of the frame portion Fon which the contact 43 is located, the contact: 46 being connected bythe Wire 1 passing through the frame portion F to the relay R. The wire12 on the other and terminates in the contact 47 on the which is adaptedto contact with the contact 4. 8 on the frame porplug 38 being fixedillustrated each as one cuit for th obviously it casing. 16 and door 20can be unt e gong is at rest, the armature 55 is spaced I from. thecontact of th tact with the contact turn is cone wire 56ft ore isconnected an electromagnet 63 disposed adjacent to the armature 55 andadapted to attract the same when it is energized. Thus when the switch1s set so that the contacts 60 and 61 engage one another, and the relayR is deprived of its energ so that the armature 58 co'n tacts with thecontact 57, the electromagnet 63 will be energized, attract the armatured throw it into contact with thecontact of the Wire 54, whereupon thecir e gong is energized. Thus or 21 removed, or any one of the frameportions-E, F and G displaced and the relay the audible alarm audiblealarm 15, the system will thereby be so as to prevent the unlocking ofthe the door 20. The locking means of the casing- 16 comprises twobrackets 65 secured to the alined set racket 66 being secured h casmg 16and having W v ase member 14. casing 16 is a extending th 67 is notenergized, the core ,68 being con- 66 will. lock said casing to saidbase member and thus prevent access to the gong 15. lhe locking" meansof the door 20 is similar to the locking means 11st described, twobrackets (39 being seeured to one of the walls of the box C and spacedapart to permit the bracket 70 to extend between them. The bracket 70 isattached to the door 20. The brackets and are provided with openingswhich aline with one another when the door 20 is closed. The top piece40 of the casing C is provided with a solenoid 71. having a core 72connected thereto so that when in suspcndtal position. when the solenoidnot energized, it will extend through the al'ined openings of thebrackets (39 and TO and lock the door 20 in closed position.

The winding oi? solenoid G7 is such that the current of the source ofpower is not suilicient for its cnergization and for this rcasom it isfound desirable to connect the solenoid 67 with a contact indicated bythe heavy dot at 73 with which contact 73 a public service main may beconnected, the other terminal for such circuit being the contact 7a(Fig. 1) illustrated as disposed adjacent to the switch 54. The solenoid(i7 is connected by awire. 75 with a wire 76 which terminates in acontact 77 disposed on the side of the armature 55 which is opposite tothat side on which the contact oi the wire 5% is located, the contact 77being adapted to contact with the armature when the gong is at rest. Thesimilar solenoid Tl is likewise connected to a contact 78 adapted to beconnected with a public service main and by means of the wire 76 isconnected to the contact 77. Disposed adjacent to the contact 61 thereis a third contact 79 for the switch S adapted to contact with thecontact 61 which contact can take place only when the contact (31 is outof. engagement with the contact 60. The contact 79 is connected by thewire 80 with the contact 81 disposed on the same side of the armatm'e 55as the contact of the wire 54 is disposed and adapted to contact withsuch armature when the contactof the wire 54. is in contact therewith.There is connected in the wire 80 an electromagnct 82 disposed adjacentto the armature- 55 and on the same side as the contact 77. The wire 80is furthermore connected with the contact t already described as adaptedto be connected to a public service main.

The switch S is adapted to be. operated by a conil'iination lock 83(Figs. 1, 2 and 3),

whereby whenthe bolt 84. is so thrown that the contact 61 will engagethe contact 60 the system is set so thatvvhenever the circuit of therelay R is disturbed so that. the relay R is deprived of energy, themagnet 3 will be en-' ergized thereby attracting the armature 55 andforming a circuit to energize the audible alarm 15. Thereupon when thebolt 84 is so thrown that the contact 61 contacts with the contact 79, acircuit will be formed which will energize the magnet 82 and retract thearmature into contact with the contact 77 and the contact of the wire 56thus resetting the armature. Thereupon the bolt 84 can be restored toits first position where it will hold the contact 61 in contact with thecontact 60. When the contacts 79 and 61 are in contact and it is desiredto remove the easing 16, it will only be necessary to connect thecontacts 73 and 74 with the public service mains, whereupon the solenoid67 will; be energized and withdraw the core' 68 from the brackets 65 and66 and it is then a simple matter to remove the casing 16. On the otherhand, if it is desired to open the inner door 20, the outer closingmember 21 having been opened, it is only necessary to connect thecontacts 78 and 74 with the public service mains and the solenoid 71will be energized to withdraw the core 72 from engagement with thebrackets 69 and 70.

From the foregoing, it will be seen that if an unauthorized personshould actually have come into the guarded structure without disturbingthe protective circuit at A, before such person could either get at thegong contained in the protected box B or at the eontrolliiu mechanismfor the gong con,- tained in the protected box C, he would immediatelydisrupt the circuit when he removed the casing 18 or opened the outerdoor 21 and furthermore would thereby destroy the unlocking circuit ofeither the innor casing 16 or the inner door 20.

On the other hand. it the unauthorized moved from the frame portion F,the circuit connect-edv to the relay R; "will be broken. Obviously. ifthe gong thereupon started, and the combination lock. could be operatedto immediately silence it, the alarm mightnot be prolonged suliicient toattract attention. However, with the present arrangement. as soon as theframe portion G or the frame portion l is removed, the connections forrestoring the gong to silence it will be so impaired that suchrestoration is impossible, the wires 56, 62-and 80 which allthree passthrough the tubular member 1) with the wires 1]. and 12, or at least thewire 80-,

through the frame portion G, Furthermore the wlres 56, 62 and 80, or atleast .thewire tions E, F, and

I connected jack "and were" will be connected by insulated cores other,and such wires will each comprise two portions, one of which portions isprovided' plug 86 shownin Fig. '6 and the.

with the other portion provided with the jack 87 shown in Fig. 7 bymeans of which the portions are connected to one another and the, plugarrangements are disposed in the tubular member Dremote' from'handling.From this, it will be seen that when the frame portion G is removed,

"it will first break the circuit depriving the relay Ri of energy,

.controlmechanism to and upon further removal of the frame porthereuponsetting the energize the gong 15,

' tionCy, the wires 56 and 80 or 56, 62 and 80,'

* illustrated in Fig. 8. In

will be pulled along with it, the jack and i plug arrangement easilygiving way to such take place This disruption will, of course, also whenthe frame portion F is removed from the frame portion E, and whentheilframe portion -E is removed from the wal pull.

. In Fig. 10, there is-shown in diagram a special application for theplug" and jack this diagram, a Wire 88 connects a source'of current 89with a resistance 90. The wire 91 connects the resistance 90 with-anelectromagnet 92,-the wire 91, extending parallel to the wire 88' foraconsiderable distance. A Wire 93 connects the electromagnet 92 toelectromagnet 4 sistance 90 will be shunted 94and;a'wire 95 connects theelectromagnet 94 with the source of current 89. At 96 and 97 the plugand jack arrangement of Fig. 8

- is disposed, the'arrangement being such that when the'plug is a Ijack' arms comes moved, so that onepair of in contact with its insu-Iated portion, the passage of current willbe 4 thereupontheelectromagnets vever, at the further removal, so that both pairs ofjack arms come in contact with the extreme conductive end of the plug,the reand thereupon the electromagnet 94 which requires greatermagnitude of current' to energize it, will be which ener 'zedpas willelectromagnet. 92.

An audi le alarm, such as a bell 98, is connected by a wire 99' with asource 01' current 100, by a wire 101 with the contact 102 and by thewire 103 with the contact 104. The source of current 100 is connected bya wire 105 with an intermediate member 106 to is pivotallyconnected thearmature 107 adapted to contact with the contact 102. To theintermediatemcmbcr106 is also pivotally connected the armature 108 adapted tocontact with the contact 104. The'armamoving the plug from its jackcuit, of an alarm outer casings thereforfsaid protective cir-. *1 cuitbeing controlled by said outer casing,-

inally out of contact with the contact 104 and when. attracted by themagnet 94 will be brought into contact with contact 104.

. From the foregoing, it will be seen that the bell 98 will be at restwhen th e plug is in position where it permits the circult to passthrough the resistance 90 in which case the electromagnet 92 isenergized, and that, on

the other hand, when in the at.,96 and 97,

course of reshould the deencrgizing of the magnet 92 not immediatelyrelease the armature 107 to contact with the contact 102 and therebyenergize the bell 98, the further removal of the plug from the jack willenergize the magnet 94 which will thereupon attract the ar- .mature 108into contact with the contact 104 where itwill be retained and the bell98 energized by the circuit'made through armature 108 and contact 104.

In the accompanying drawings I have diagrammatically represented anembodiment of my invention, but I do not limit myself to the particulararrangement shown, as it will be evident to one skilled in the art, thatfeatures of my invention are adapted for use either separately or incombination with each other, and the particular descriptionshereinbefore contained of the typical system shown in the annexed,drawings are given for the clearerillustration of my invention. Manychanges in construction and arrangement, and insertion or omission ofparts may be made without departing from the spirit of my invention.

The casing locking means hereinbefore mentioned is described and claimedin United States Letters Patent No. 1,221,322, dated April 3, 1917, saidpatent resulting from application Serial No. 147,665, which was adivision of this application. I claim:

1. The combination of an alarm mechanism, inner and outer casingstherefor, locking means for said inner ing means for said locking means,and means controlled by said outer casing forenergizing said alarmmechanism and for disabling said releasing means.

2. The combination with a protective cir- .mechanism, inner and lockingmeans for said inner casing, releasing means for said locking means,and. dis ablin means for said releasingmeans con-. trolled by theprotective circuit.

3. The combination'with a protective circuit, of an alarm mechanism,inner and outer casings therefor,

means for said inner casing, releasing means said protective circuitbeing controlled by said outer casing, locking casing, releasi for saidlocking means, and means controlled by the protective circuit forenergizing said alarm mechanism and for disabling said releasing means.

4. In an alarm system, the combination with a structure to be guarded,saidv structure having one or more movable portions, of a two wireprotective circuit, each wire of said protective circuit beingdisrupted' adjacent to one of said movable portions, a plug connectetdwith said movable portion and adapted to bridge said disru )tions topermit the continuous passage 0 current through said protective circuitwhen said movable portion is inone position, and adapted when ren'ioved,first to cross connect from one wire to the other of said protectivecircuit, and second to break connection through both wires of saidprotective circuit, an alarm mechanism, and initiating means foractuating said alarm mechanism controlled by said protective circuit.

5. In an alarm system, the combination with a structure tobe guarded,said structure having one or more movable portions, of a two'wireprotective circuit, each wire of said protective circuit being disruptedadjacent to one of said movable portions, 2.

' plug connected with said movable portion and adapted to bridge saiddisruptions to permit the continuous passage of current through saidprotective circuit when said movable portion is in one position, andadapted when removed, first to break connection through one wire of saidprotective circuit, second to cross connect from one wire to the otherof said protective circuit, and third to break connection through bothWires of said protective circuit, an alarm mechanism,-and initiatingmeans for actuatin; said alarm mechanism controlled by either a break ora cross in said protective circuit.

6. In a burglar alarm, the combination with a structure to be guarded.of a source of current, an alarm mechanism, housing means in which saidalarm mechanism is disposed, an outer cover for said housing means, aninner cover for said housing means, the alarm mechanism being disposedinside of said inner cover, wiring connecting said housing means andsaid guarded structure to said source of current, the wiring beingdisrupted while passing through said housing means, and a pin on' saidouter cover adapted to'bridge said disruption to ermit the continuouspassage of current t rough said wiring when said cover is closed, andinitiating means for actuating said alarm mechanism, said initiatingmeans being maintained in inoperative posi tion so long as the currentflows through such wiring but assuming operative position whenever saidWiring is disru too.

7. In a burglar alarm, the com ination with a structure to be guarded,of a source of current, an alarm mechanism, housing means in which saidalarm mechanism is disposed, an auxiliary casing, setting means for thealarm mechanism disposed in said auxiliary source of current with saidstructure to be guarded, said. housing means, and said auxiliary casing,initiating means for actuating said alarm mechanism, said initiatingmeans being n'iaintained in inoperative flows through such wiringbutassuming operative position whenever said wirii ig disrupted, saidauxiliary casing co nprisiug three frame portions, wiring passingthrough all of said three frame portions, contacts on said frameportions contacting with one another when said frame portions are inclosed position thereby forming a continuous passage for current throughall the wiring or said frame portions so that the current will be brokenwhen any one of said frame port ions is displaced. sa id w ring forminga part of the wiring connects with said source of current, and ailockingmeans disposed on such frame portion Wlnelris located intermediate theother two frainey portions and operatively connected to said settingmeans whereby said setting means is oper- .ated, the position of suchlocking means casing, wiring connecting said position so long asthefcurrent on said intermediate frame portion requiring one of saidouter frame portions to be removed before the locking means can bemanipulated whereby the wire will be dis rupted and energize the alarmmechanism.

8. In a burglar alarm, the combination with a structure to be guarded,of a source of current, an alarm mechanism, housing means in which saidalarm mechanism is die posed, a cover for said housing means, anauxiliary casing, setting mechanism for said alarm mechanism, disposedin said auxiliary casing, a=wiring connecting said source of currentwith said structure to beguarded and said housing means, and saidauxiliary casing, initiating means for actuating said alarm mechanism,said initiating means being maintained in inoperative position so longas the current flows through such wiring but assuming operative positionwhenever said wiring is disrupted, electromagnetic locking meansassociated with said cover and said housing means and adapted whendeiincrgized to lock said cover to said housing means, and a connectionfrom said electromagnetic locking means to a sepa ate means, (if aprotective circuit including" two epa rallel conductors insulated fromeach other, there being interposed in each of said.

- permit current to flow through said parallel conductors,- andsignaling means arranged .to be shunted When said plug Permits thepassage of current from one parallel con- 10 ductor to the other., A

Signed at New York city, in the county of New York and State of New Yorkthisv second day of June A. D. 1915, v

SIMON B. HESS.-

